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Search results for: rosemary
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<form method="get" action="https://publications.waset.org/abstracts/search"> <div id="custom-search-input"> <div class="input-group"> <i class="fas fa-search"></i> <input type="text" class="search-query" name="q" placeholder="Author, Title, Abstract, Keywords" value="rosemary"> <input type="submit" class="btn_search" value="Search"> </div> </div> </form> </div> </div> <div class="row mt-3"> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Commenced</strong> in January 2007</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Frequency:</strong> Monthly</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Edition:</strong> International</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Paper Count:</strong> 37</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: rosemary</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">37</span> Health Promoting Properties of Phytochemicals from Rosemary (Rosmarinus officinalis) for Cancer and Inflammatory Bowel Disease</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Jeremy%20J.%20Johnson">Jeremy J. Johnson</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Mediterranean herbs including rosemary (Rosmarinus officinalis) contain a variety of phytochemicals including diterpenes that possess extensive biological activity. Applications of diterpenes, including the more abundant forms carnosol and carnosic acid, have been shown to possess anti-cancer, anti-inflammatory, anti-oxidant, and anti-proliferation properties. To confirm these properties, we have evaluated rosemary extract and selected diterpenes for biological activity in cancer and inflammatory models. Our preliminary data have revealed that select diterpenes can disrupt androgen receptor functionality in prostate and breast cancer cells. This property is unique among natural products for hormone-responsive cancers. The second area of interest has been evaluating rosemary extract and selected diterpenes for activation of sestrin-2, an antioxidant protein, in colon cancer cells. A combination of in vitro and in vivo approaches have been utilized to characterize the activity of rosemary diterpenes in rosemary. Taken together, these results suggest that phytochemicals found in rosemary have distinct pharmacological actions for disrupting cell-signaling pathways in cancer and inflammatory bowel disease. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=rosemary" title="rosemary">rosemary</a>, <a href="https://publications.waset.org/abstracts/search?q=diterpene" title=" diterpene"> diterpene</a>, <a href="https://publications.waset.org/abstracts/search?q=cancer" title=" cancer"> cancer</a>, <a href="https://publications.waset.org/abstracts/search?q=inflammation" title=" inflammation"> inflammation</a> </p> <a href="https://publications.waset.org/abstracts/106363/health-promoting-properties-of-phytochemicals-from-rosemary-rosmarinus-officinalis-for-cancer-and-inflammatory-bowel-disease" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/106363.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">146</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">36</span> Protective Effect of Rosemary Extract against Toxicity Induced by Egyptian Naja haje Venom</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Walaa%20H.%20Salama">Walaa H. Salama</a>, <a href="https://publications.waset.org/abstracts/search?q=Azza%20M.%20Abdel-Aty"> Azza M. Abdel-Aty</a>, <a href="https://publications.waset.org/abstracts/search?q=Afaf%20S.%20Fahmy"> Afaf S. Fahmy</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Background: Egyptian Cobra; Naja haje (Elapidae) is one of most common snakes, widely distributed in Egypt and its envenomation causes multi-organ failure leading to rapid death. Thus, Different medicinal plants showed a protective effect against venom toxicity and may complement the conventional antivenom therapy. Aim: The present study was designed to assess both the antioxidant capacity of methanolic extract of rosemary leaves and evaluate the neutralizing ability of the extract against hepatotoxicity induced by Naja haje venom. Methods: The total phenolic and flavonoid contents and the antioxidant capacity of the methanolic rosemary extract were estimated by DPPH and ABTS Scavenging methods. In addition, the rosemary extract were assessed for anti-venom properties under in vitro and in vivo standard assays. Results: The rosemary extract had high total phenolic and flavonoid content as 12 ± 2 g of gallic acid equivalent per 100 gram of dry weight (g GAE/100g dw) and 5.5 ± 0.8 g of catechin equivalent per 100 grams of dry weight (g CE/100g dw), respectively. In addition, the rosemary extract showed high antioxidant capacity. Furthermore, The rosemary extract were inhibited in vitro the enzymatic activities of phospholipase A₂, L-amino acid oxidase, and hyaluronidase of the venom in a dose-dependent manner. Moreover, indirect hemolytic activity, hepatotoxicity induced by venom were completely neutralized as shown by histological studies. Conclusion: The phenolic compounds of rosemary extract with potential antioxidant activity may be considered as a promising candidate for future therapeutics in snakebite therapy. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=antioxidant%20activity" title="antioxidant activity">antioxidant activity</a>, <a href="https://publications.waset.org/abstracts/search?q=neutralization" title=" neutralization"> neutralization</a>, <a href="https://publications.waset.org/abstracts/search?q=phospholipase%20A%E2%82%82%20enzyme" title=" phospholipase A₂ enzyme"> phospholipase A₂ enzyme</a>, <a href="https://publications.waset.org/abstracts/search?q=snake%20venom" title=" snake venom"> snake venom</a> </p> <a href="https://publications.waset.org/abstracts/86772/protective-effect-of-rosemary-extract-against-toxicity-induced-by-egyptian-naja-haje-venom" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/86772.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">182</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">35</span> Ameliorating Effects of Rosemary and Costus on Blood-Associated Toxicity in Ehrlich-Bearing Mice Treated with Cisplatin</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Yousry%20El-Sayed%20Elbolkiny">Yousry El-Sayed Elbolkiny</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20Labib%20%20Salem"> Mohamed Labib Salem</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Background: Rosemary (ROLE) and costus (SLRE) have been established to show antioxidant effects. Aim: This study aimed to evaluate the ameliorating effects of ROLE and SLRE on the side effects induced by cisplatin (CIS) in tumor-bearing mice. Materials and Methods: Extracts of ROLE and SLRE were examined for their phytochemical activities. To evaluate their anti-tumor effects, mice were inoculated intraperitoneally (i.p.) with 2.5x105 Ehrlich ascites carcinoma (EAC) and then treated i.p. with CIS at days 3-7 and with ROLE (dose) or SLRE (dose) at days 3-14. Mice were sacrificed on day 14 for CBC and T-cell analyses. Results: Phytochemical analysis revealed that both ROLE and SLRE showed similar antioxidant activities. Treatment of EAC-bearing mice with CIS-induced antitumor efficacy of about 90%. Treatment with CIS in combination with ROLE or SLRE did not further enhance the antitumor activity of CIS. However, co-administration of ROLE or SLRE with CIS significantly increased the antitumor efficacy of CIS. Flow cytometric analysis showed that the numbers of CD4+ and CD8+ T cells were decreased in EAC-bearing mice after treatment with CIS. Treatment with both ROLE and SLRE improved the number of these cells. Conclusion: Combinatorial treatment with rosemary and costus can enhance the antitumor activity of CIS <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=CBC" title="CBC">CBC</a>, <a href="https://publications.waset.org/abstracts/search?q=cisplantin" title=" cisplantin"> cisplantin</a>, <a href="https://publications.waset.org/abstracts/search?q=costus" title=" costus"> costus</a>, <a href="https://publications.waset.org/abstracts/search?q=rosemary" title=" rosemary"> rosemary</a> </p> <a href="https://publications.waset.org/abstracts/185377/ameliorating-effects-of-rosemary-and-costus-on-blood-associated-toxicity-in-ehrlich-bearing-mice-treated-with-cisplatin" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/185377.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">48</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">34</span> Antibacterial Activity of Rosmarinus officinalis (Rosemary) and Murraya koenigii (Curry Leaves) against Multidrug Resistant S. aureus and Coagulase Negative Staphylococcus Species</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Asma%20Naim">Asma Naim</a>, <a href="https://publications.waset.org/abstracts/search?q=Warda%20Mushtaq"> Warda Mushtaq</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Staphylococcus species are the most versatile and adaptive organism. They are widespread and naturally found on the skin, mucosa and nose in humans. Among these, Staphylococcus aureus is the most important species. These organisms act as opportunistic pathogens and can infect various organs of the host, causing minor skin infection to severe toxin mediated diseases, and life threatening nosocomial infections. Staphylococcus aureus has acquired resistance against β-lactam antibiotics by the production of β-lactamase, and Methicillin-Resistant Staphylococcus aureus (MRSA) strains have also been reported with increasing frequency. MRSA strains have been associated with nosocomial as well as community acquired infections. Medicinal plants have enormous potential as antimicrobial substances and have been used in traditional medicine. Search for medicinally valuable plants with antimicrobial activity is being emphasized due to increasing antibiotic resistance in bacteria. In the present study, the antibacterial potential of Rosmarinus officinalis (Rosemary) and Murraya koenigii (curry leaves) was evaluated. These are common household herbs used in food as enhancer of flavor and aroma. The crude aqueous infusion, decoction and ethanolic extracts of curry leaves and rosemary and essential oil of rosemary were investigated in the present study for antibacterial activity against multi-drug resistant Staphylococcus strains using well diffusion method. In the present study, 60 Multi-drug resistant clinical isolates of S. aureus (43) and Coagulase Negative Staphylococci (CoNS) (17) were screened against different concentrations of crude extracts of Rosmarinus officinalis and Murraya koenigii. Out of these 60 isolates, 43 were sensitive to the aqueous infusion of rosemary; 23 to aqueous decoction and 58 to ethanolic extract whereas, 24 isolates were sensitive to the essential oil. In the case of the curry leaves, no antibacterial activity was observed in aqueous infusion and decoction while only 14 isolates were sensitive to the ethanolic extract. The aqueous infusion of rosemary (50% concentration) exhibited a zone of inhibition of 21(±5.69) mm. against CoNS and 17(±4.77) mm. against S. aureus, the zone of inhibition of 50% concentration of aqueous decoction of rosemary was also larger against CoNS 17(±5.78) mm. then S. aureus 13(±6.91) mm. and the 50% concentrated ethanolic extract showed almost similar zone of inhibition in S. aureus 22(±3.61) mm. and CoNS 21(±7.64) mm. whereas, the essential oil of rosemary showed greater zone of inhibition against S. aureus i.e., 16(±4.67) mm. while CoNS showed 15(±6.94) mm. These results show that ethanolic extract of rosemary has significant antibacterial activity. Aqueous infusion and decoction of curry leaves revealed no significant antibacterial potential against all Staphylococcal species and ethanolic extract also showed only a weak response. Staphylococcus strains were susceptible to crude extracts and essential oil of rosemary in a dose depend manner, where the aqueous infusion showed highest zone of inhibition and ethanolic extract also demonstrated antistaphylococcal activity. These results demonstrate that rosemary possesses antistaphylococcal activity. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=antibacterial%20activity" title="antibacterial activity">antibacterial activity</a>, <a href="https://publications.waset.org/abstracts/search?q=curry%20leaves" title=" curry leaves"> curry leaves</a>, <a href="https://publications.waset.org/abstracts/search?q=multidrug%20resistant" title=" multidrug resistant"> multidrug resistant</a>, <a href="https://publications.waset.org/abstracts/search?q=rosemary" title=" rosemary"> rosemary</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20aureus" title=" S. aureus"> S. aureus</a> </p> <a href="https://publications.waset.org/abstracts/64334/antibacterial-activity-of-rosmarinus-officinalis-rosemary-and-murraya-koenigii-curry-leaves-against-multidrug-resistant-s-aureus-and-coagulase-negative-staphylococcus-species" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/64334.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">248</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">33</span> Antioxidant Activity of the Methanolic Extract and Antimicrobial Activity of the Essential Oil of Rosmarinus officinalis L. Grown in Algeria</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nassim%20Belkacem">Nassim Belkacem</a>, <a href="https://publications.waset.org/abstracts/search?q=Amina%20Azzam"> Amina Azzam</a>, <a href="https://publications.waset.org/abstracts/search?q=Dalila%20Haouchine"> Dalila Haouchine</a>, <a href="https://publications.waset.org/abstracts/search?q=Kahina%20Bennacer"> Kahina Bennacer</a>, <a href="https://publications.waset.org/abstracts/search?q=Samira%20Soufit"> Samira Soufit</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Objective: To evaluate the antioxidant activity of the methanolic extract along with the antimicrobial activity of the essential oil of the aerial parts of Rosmarinus officinalis L. collected in the region of Bejaia (northern center of Algeria). Materials and methods: The polyphenols and flavonoids contents of the methanolic extract were measured. The antioxidant activity was evaluated using two methods: the ABTS method and DPPH assay. The antimicrobial activity was studied by the agar diffusion method against five bacterial strains (Three Gram positive strains and two Gram negative strains) and one fungus. Results: The total polyphenol and flavonoid content was about 43.8 mg gallic acid equivalent per gram (GA Eq/g) and 7.04 mg quercetin equivalent per gram (Q Eq/g), respectively. In the ABTS assay, the rosemary extract has shown an inhibition of 98.02% at the concentration of 500ug/ml with a half maximal inhibitory concentration value (IC50) of 194.92ug/ml. The results of DPPH assay have shown that the rosemary extract has an inhibition of 94.67 % with an IC50 value of 17.87ug/ml, which is lower than that of Butylhydroxyanisol (BHA) about 6.03ug/ml and ascorbic acid about 1.24μg/ml. The yield in essential oil of rosemary obtained by hydrodistillation was 1.42%. Based on the determination of the diameter of inhibition, different antimicrobial activity of the essential oil was revealed against the six tested microbes. Escherichia coli from the University Hospital (UH), Streptococcus aureus (UH) and Pseudomonas aeruginosa ATCC have a minimum inhibitory concentration value (MIC) of 62.5µl/ml. However, Bacillus sp (UH) and Staphylococcus aureus ATCC have an MIC value of 125μl/ml. The inhibition zone against Candida sp was about 24 mm. The aromatograms showed that the essential oil of rosemary exercises an antifungal activity more important than the antibacterial one. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Rosmarinus%20officinalis%20L." title="Rosmarinus officinalis L.">Rosmarinus officinalis L.</a>, <a href="https://publications.waset.org/abstracts/search?q=maceration" title=" maceration"> maceration</a>, <a href="https://publications.waset.org/abstracts/search?q=essential%20oil" title=" essential oil"> essential oil</a>, <a href="https://publications.waset.org/abstracts/search?q=antioxidant" title=" antioxidant"> antioxidant</a>, <a href="https://publications.waset.org/abstracts/search?q=antimicrobial%20activity" title=" antimicrobial activity"> antimicrobial activity</a> </p> <a href="https://publications.waset.org/abstracts/22071/antioxidant-activity-of-the-methanolic-extract-and-antimicrobial-activity-of-the-essential-oil-of-rosmarinus-officinalis-l-grown-in-algeria" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/22071.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">522</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">32</span> Quality Characteristics of Cured Dried Camel Meat Formulated with Different Medicinal Plants as Natural Preservatives</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=H.%20S.%20Aljabeili">H. S. Aljabeili</a>, <a href="https://publications.waset.org/abstracts/search?q=E.%20A.%20Abd%20El-Hady"> E. A. Abd El-Hady</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20M.%20Abd%20El-Razik"> M. M. Abd El-Razik</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Abd%20Elgadir"> M. Abd Elgadir</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The aim of the study is determining the quality characteristics of produced curing and dried camel meat contained some medicinal plants of thyme, rosemary, clove and ginger as natural preservatives. Camel meat samples were sliced and divided into five batches, one batch recorded as control sample was treated by the curing mixture (2.5%) contained the following ingredients: black pepper 1 gm, cumin 0.4 gm, spices mixture 0.5 gm, dried onion 3 gm, dried garlic 0.5 gm and salt 2 gm. To evaluate the effect of different natural preservatives sources of thyme, rosemary, clove and ginger, 3.0% of the aforementioned natural preservatives was mixed with the aforementioned curing mixture and used for curing the four batches of sliced camel meat. After curing process, cured sliced camel meat (control and treated with the natural preservatives) were conducting to drying process at 35 ± 3 °C for 36 h in a drying cabinet. The quality characteristics of prepared dried camel meat were evaluated such as chemical composition, microbiological characteristics and sensory characteristics. Based on the microbiological and sensory characteristics, it could be suggested that the selected medicinal plants specially thyme and rosemary could be used as natural preservatives for preparing semi dry camel meat without negative effects. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=curing" title="curing">curing</a>, <a href="https://publications.waset.org/abstracts/search?q=dried%20camel%20meat" title=" dried camel meat"> dried camel meat</a>, <a href="https://publications.waset.org/abstracts/search?q=medicinal%20plants" title=" medicinal plants"> medicinal plants</a>, <a href="https://publications.waset.org/abstracts/search?q=natural%20preservatives" title=" natural preservatives"> natural preservatives</a>, <a href="https://publications.waset.org/abstracts/search?q=quality%20characteristics" title=" quality characteristics"> quality characteristics</a> </p> <a href="https://publications.waset.org/abstracts/100124/quality-characteristics-of-cured-dried-camel-meat-formulated-with-different-medicinal-plants-as-natural-preservatives" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/100124.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">225</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">31</span> New Applications of Essential Oils: Edible Packaging Material for Food Supplements</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Roxana%20Gheorghita">Roxana Gheorghita</a>, <a href="https://publications.waset.org/abstracts/search?q=Gheorghe%20Gutt"> Gheorghe Gutt</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Environmental pollution due to non-degradation of packaging from the food and pharmaceutical industry is reaching increasingly alarming levels. The packaging used for food supplements is usually composed of successive layers of synthetic materials, conventional, glue, and paint. The situation is becoming more and more problematic as the population, according to statistics, uses food supplements more and more often. The solution can be represented by edible packaging, completely biodegradable, and compostable. The tested materials were obtained from biopolymers, agar, carrageenan, and alginate, in well-established quantities and plasticized with glycerol. Rosemary, thyme, and oregano essential oils have been added in varying proportions. The obtained films are completely water-soluble in hot liquids (with a temperature of about 80° C) and can be consumed with the product contained. The films were glossy, pleasant to the touch, thin (thicknesses between 32.8 and 52.8 μm), transparent, and with a pleasant smell, specific to the added essential oil. Tested for microbial evaluation, none of the films indicated the presence of E. coli, S. aureus, enterobacteria, coliform bacteria, yeasts, or molds. This aspect can also be helped by the low values of the water activity index (located between 0.546 and 0.576). The mechanical properties indicated that the material became more resistant with the addition of essential oil, the best values being recorded by the addition of oregano. The results obtained indicate the possibility of using biopolymer-based films with the addition of rosemary, thyme, and oregano essential oil, for wrapping food supplements, thus replacing conventional packaging, multilayer, impossible to sort and recycle. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=edible%20films" title="edible films">edible films</a>, <a href="https://publications.waset.org/abstracts/search?q=food%20supplements" title=" food supplements"> food supplements</a>, <a href="https://publications.waset.org/abstracts/search?q=oregano" title=" oregano"> oregano</a>, <a href="https://publications.waset.org/abstracts/search?q=rosemary" title=" rosemary"> rosemary</a>, <a href="https://publications.waset.org/abstracts/search?q=thyme" title=" thyme"> thyme</a> </p> <a href="https://publications.waset.org/abstracts/131184/new-applications-of-essential-oils-edible-packaging-material-for-food-supplements" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/131184.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">133</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">30</span> Protective Impact of Some Natural Extracts Against Acute Hepatotoxicity in Wistar Rats: DNA Protecting, Antioxidant and Anti-Inflammatory Effects</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Yara%20Mohamed%20Taha">Yara Mohamed Taha</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20Ali%20El%20Desouky"> Mohamed Ali El Desouky</a>, <a href="https://publications.waset.org/abstracts/search?q=Heba%20Kamal%20Abdel%20Hakim"> Heba Kamal Abdel Hakim</a>, <a href="https://publications.waset.org/abstracts/search?q=Maha%20Hanafy%20Mahmoud"> Maha Hanafy Mahmoud</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Hepatotoxicity due to drugs and toxic chemicals constitutes a crucial health problem nowadays. Medicinal plants are widely used recently for protecting against many liver disorders and inflammatory conditions. This study aims to evaluate hepatoprotective impact of green tea extract (GTE), rosemary extract (RE) and rosmarinic acid (RA) against hepatotoxins; ferric nitrilotriacetate (Fe-NTA) and diethylnitrosamine (DEN) in rats. Five groups of male Wistar rats were included; one control negative, while the other groups were treated intraperitoneally with DEN as 160 mg.kg-1 b.w. on 15th day and Fe-NTA as 5 mg.kg-1 b.w. on 33rd day. One of them was control positive. The other three groups were pre-administered with daily protective oral doses of either 200 mg.kg-1 b.w. of RE or 1 g.kg- 1 b.w. of GTE or 50 mg.kg-1 b.w. of RA two weeks prior to DEN exposure and continued till the end of the experimental period. The obtained data revealed a highly significant increase of MDA, 8-OHdG, DNA damage percent, a significant depletion of GSH and elevated Gr-1 protein expression in hepatocytes with liver tissue histopathological changes of rats exposed to DEN+Fe-NTA. Pre-administration of protective doses of RE, GTE and RA to DEN+Fe-NTA treated rats could normalize the altered biochemical, histopathological and immunohistochemical parameters. In conclusion, RE, GTE and RA showed a hepatoprotective effect against liver toxicity induced by DEN+Fe-NTA, with the best antioxidant and anti-inflammatory impact were for RA and GTE. Therefore, the current study declared that rosemary, green tea and products enriched with rosmarinic acid should be involved daily in diet of people who are exposed to chemicals and environmental toxins to protect themselves from hepatotoxicity. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=hepatotoxicity" title="hepatotoxicity">hepatotoxicity</a>, <a href="https://publications.waset.org/abstracts/search?q=diethylnitrosamine%20and%20ferric%20nitrilotriacetate" title=" diethylnitrosamine and ferric nitrilotriacetate"> diethylnitrosamine and ferric nitrilotriacetate</a>, <a href="https://publications.waset.org/abstracts/search?q=rosemary%20extract%20%28RE%29" title=" rosemary extract (RE)"> rosemary extract (RE)</a>, <a href="https://publications.waset.org/abstracts/search?q=green%20tea%20extract%20%28GTE%29" title=" green tea extract (GTE)"> green tea extract (GTE)</a>, <a href="https://publications.waset.org/abstracts/search?q=rosmarinic%20acid%20%28RA%29" title=" rosmarinic acid (RA)"> rosmarinic acid (RA)</a> </p> <a href="https://publications.waset.org/abstracts/170967/protective-impact-of-some-natural-extracts-against-acute-hepatotoxicity-in-wistar-rats-dna-protecting-antioxidant-and-anti-inflammatory-effects" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/170967.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">92</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">29</span> Enhancing of Antibacterial Activity of Essential Oil by Rotating Magnetic Field</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Tomasz%20Borowski">Tomasz Borowski</a>, <a href="https://publications.waset.org/abstracts/search?q=Dawid%20So%C5%82oducha"> Dawid Sołoducha</a>, <a href="https://publications.waset.org/abstracts/search?q=Agata%20Markowska-Szczupak"> Agata Markowska-Szczupak</a>, <a href="https://publications.waset.org/abstracts/search?q=Aneta%20Weso%C5%82owska"> Aneta Wesołowska</a>, <a href="https://publications.waset.org/abstracts/search?q=Marian%20Kordas"> Marian Kordas</a>, <a href="https://publications.waset.org/abstracts/search?q=Rafa%C5%82%20Rakoczy"> Rafał Rakoczy</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Essential oils (EOs) are fragrant volatile oils obtained from plants. These are used for cooking (for flavor and aroma), cleaning, beauty (e.g., rosemary essential oil is used to promote hair growth), health (e.g. thyme essential oil cures arthritis, normalizes blood pressure, reduces stress on the heart, cures chest infection and cough) and in the food industry as preservatives and antioxidants. Rosemary and thyme essential oils are considered the most eminent herbs based on their history and medicinal properties. They possess a wide range of activity against different types of bacteria and fungi compared with the other oils in both in vitro and in vivo studies. However, traditional uses of EOs are limited due to rosemary and thyme oils in high concentrations can be toxic. In light of the accessible data, the following hypothesis was put forward: Low frequency rotating magnetic field (RMF) increases the antimicrobial potential of EOs. The aim of this work was to investigate the antimicrobial activity of commercial Salvia Rosmarinus L. and Thymus vulgaris L. essential oil from Polish company Avicenna-Oil under Rotating Magnetic Field (RMF) at f = 25 Hz. The self-constructed reactor (MAP) was applied for this study. The chemical composition of oils was determined by gas chromatography coupled with mass spectrometry (GC-MS). Model bacteria Escherichia coli K12 (ATCC 25922) was used. Minimum inhibitory concentrations (MIC) against E. coli were determined for the essential oils. Tested oils in very small concentrations were prepared (from 1 to 3 drops of essential oils per 3 mL working suspensions). From the results of disc diffusion assay and MIC tests, it can be concluded that thyme oil had the highest antibacterial activity against E. coli. Moreover, the study indicates the exposition to the RMF, as compared to the unexposed controls causing an increase in the efficacy of antibacterial properties of tested oils. The extended radiation exposure to RMF at the frequency f= 25 Hz beyond 160 minutes resulted in a significant increase in antibacterial potential against E. coli. Bacteria were killed within 40 minutes in thyme oil in lower tested concentration (1 drop of essential oils per 3 mL working suspension). Rapid decrease (>3 log) of bacteria number was observed with rosemary oil within 100 minutes (in concentration 3 drops of essential oils per 3 mL working suspension). Thus, a method for improving the antimicrobial performance of essential oil in low concentrations was developed. However, it still remains to be investigated how bacteria get killed by the EOs treated by an electromagnetic field. The possible mechanisms relies on alteration in the permeability of ionic channels in ionic channels in the bacterial cell walls that transport in the cells was proposed. For further studies, it is proposed to examine other types of essential oils and other antibiotic-resistant bacteria (ARB), which are causing a serious concern throughout the world. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=rotating%20magnetic%20field" title="rotating magnetic field">rotating magnetic field</a>, <a href="https://publications.waset.org/abstracts/search?q=rosemary" title=" rosemary"> rosemary</a>, <a href="https://publications.waset.org/abstracts/search?q=thyme" title=" thyme"> thyme</a>, <a href="https://publications.waset.org/abstracts/search?q=essential%20oils" title=" essential oils"> essential oils</a>, <a href="https://publications.waset.org/abstracts/search?q=Escherichia%20coli" title=" Escherichia coli"> Escherichia coli</a> </p> <a href="https://publications.waset.org/abstracts/145024/enhancing-of-antibacterial-activity-of-essential-oil-by-rotating-magnetic-field" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/145024.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">156</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">28</span> Physical and Microbiological Evaluation of Chitosan Films: Effect of Essential Oils and Storage</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=N.%20Valderrama">N. Valderrama</a>, <a href="https://publications.waset.org/abstracts/search?q=W.%20Albarrac%C3%ADn"> W. Albarracín</a>, <a href="https://publications.waset.org/abstracts/search?q=N.%20Algecira"> N. Algecira</a> </p> <p class="card-text"><strong>Abstract:</strong></p> It was studied the effect of the inclusion of thyme and rosemary essential oils into chitosan films, as well as the microbiological and physical properties when storing chitosan film with and without the mentioned inclusion. The film forming solution was prepared by dissolving chitosan (2%, w/v), polysorbate 80 (4% w/w CH) and glycerol (16% w/w CH) in aqueous lactic acid solutions (control). The thyme (TEO) and rosemary (REO) essential oils (EOs) were included 1:1 w/w (EOs:CH) on their combination 50/50 (TEO:REO). The films were stored at temperatures of 5, 20, 33°C and a relative humidity of 75% during four weeks. The films with essential oil inclusion did not show an antimicrobial activity against strains. This behavior could be explained because the chitosan only inhibits the growth of microorganisms in direct contact with the active sites. However, the inhibition capacity of TEO was higher than the REO and a synergic effect between TEO:REO was found for S. enteritidis strains in the chitosan solution. Some physical properties were modified by the inclusion of essential oils. The addition of essential oils does not affect the mechanical properties (tensile strength, elongation at break, puncture deformation), the water solubility, the swelling index nor the DSC behavior. However, the essential oil inclusion can significantly decrease the thickness, the moisture content, and the L* value of films whereas the b* value increased due to molecular interactions between the polymeric matrix, the loosing of the structure, and the chemical modifications. On the other hand, the temperature and time of storage changed some physical properties on the chitosan films. This could have occurred because of chemical changes, such as swelling in the presence of high humidity air and the reacetylation of amino groups. In the majority of cases, properties such as moisture content, tensile strength, elongation at break, puncture deformation, a*, b*, chrome, ΔE increased whereas water resistance, swelling index, L*, and hue angle decreased. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=chitosan" title="chitosan">chitosan</a>, <a href="https://publications.waset.org/abstracts/search?q=food%20additives" title=" food additives"> food additives</a>, <a href="https://publications.waset.org/abstracts/search?q=modified%20films" title=" modified films"> modified films</a>, <a href="https://publications.waset.org/abstracts/search?q=polymers" title=" polymers "> polymers </a> </p> <a href="https://publications.waset.org/abstracts/16892/physical-and-microbiological-evaluation-of-chitosan-films-effect-of-essential-oils-and-storage" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/16892.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">366</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">27</span> A Comparative Study of Essential Oils Used in Papyrus Sterilization: A Case Study from the Early Islamic Period</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Bahaa%20Fawwaz%E2%80%AC%E2%80%8F">Bahaa Fawwaz</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The study was conducted on a papyrus housed at the Museum of Islamic Art in Cairo, Egypt. This papyrus was inscribed with black ink. Twelve fungal species were isolated and identified. Five types of fungi were ultimately identified to complete the study. The isolated fungi were then incubated for three months after the aging procedure. This study investigates the in-vitro growth inhibition of Aspergillus niger, Aspergillus flavus, Penicillium chrysogenum, Trichoderma longibrachiatum Rifai, and Paecilomyces variotii on papyrus. The hyphal growth was observed using the environmental scanning electron microscope (ESEM). Natural oils, such as lavender oil, lemongrass oil, and rosemary oil, were used. The impact of these natural oils on the newly aged papyrus was assessed using scanning electron microscopy and color analysis to identify the most effective oils for inhibiting fungus growth. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=conservation" title="conservation">conservation</a>, <a href="https://publications.waset.org/abstracts/search?q=papyrus" title=" papyrus"> papyrus</a>, <a href="https://publications.waset.org/abstracts/search?q=fungi" title=" fungi"> fungi</a>, <a href="https://publications.waset.org/abstracts/search?q=growth" title=" growth"> growth</a>, <a href="https://publications.waset.org/abstracts/search?q=environmental" title=" environmental"> environmental</a>, <a href="https://publications.waset.org/abstracts/search?q=essential%20oils" title=" essential oils"> essential oils</a> </p> <a href="https://publications.waset.org/abstracts/186141/a-comparative-study-of-essential-oils-used-in-papyrus-sterilization-a-case-study-from-the-early-islamic-period" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/186141.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">47</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">26</span> Political Empowerment of Japanese Women: Roles and Strategies of Social Movements and Feminist Groups</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Soliman%20Rosemary">Soliman Rosemary</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Despite the widespread movements towards democratization in most countries, women are still largely underrepresented at most levels of governments, especially in ministerial and other executive bodies. This paper is going to focus on the status quo of women political marginalization in Japan and the role social movements, feminist groups and campaigns play in raising the number of female politicians in administrative decision making process. The paper will raise some Japanese feminist groups such as ‘WIN WIN’ and ‘Q no Kai’ and other feminist groups as case studies. The study will help in furthering the understanding of women political empowerment in Japan and the strategies of contemporary social movements in raising the awareness of the importance of gender quota in the electoral system to be able to place new items on the political agenda that reflect and address women's gender-specific concerns, values and experiences, and providing new perspectives on mainstream political issues. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=feminist" title="feminist">feminist</a>, <a href="https://publications.waset.org/abstracts/search?q=political%20empowerment" title=" political empowerment"> political empowerment</a>, <a href="https://publications.waset.org/abstracts/search?q=quota" title=" quota"> quota</a>, <a href="https://publications.waset.org/abstracts/search?q=social%20movements" title=" social movements"> social movements</a> </p> <a href="https://publications.waset.org/abstracts/63381/political-empowerment-of-japanese-women-roles-and-strategies-of-social-movements-and-feminist-groups" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/63381.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">324</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">25</span> Development of Adhesive from Prosopis african Seed Endosperm (OKPEYI)</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Florence%20%20Chinyere%20Nwangwu">Florence Chinyere Nwangwu</a>, <a href="https://publications.waset.org/abstracts/search?q=Rosemary%20Ene"> Rosemary Ene</a> </p> <p class="card-text"><strong>Abstract:</strong></p> An experimental study was carried out to develop an adhesive from Prosopis africana seed endosperm. The Prosopis seeds for this work were obtained from Enugu State in the South East part of Nigeria. The Prosopis seeds were prepared by separating the Prosopis endosperm from the seed coat and cotyledon. The dry adhesive gotten from the endosperm was later dissolved to get the adhesive solution. Confirmatory tests like viscosity, density, pH, and binding strength were carried out. The effect of time, temperature, concentration on the yield and properties of the adhesive were investigated. The results obtained showed that increase in concentration, time, temperature decreases the viscosity of the Prosopis adhesive and yield of Prosopis endosperm. It was also deduced that increase in viscosity increases the binding strength of the Prosopis adhesive. The percentage of the adhesive yield from Prosopis endosperm showed that the commercialization of the seed in Nigeria will be possible and profitable. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=adhesive" title="adhesive">adhesive</a>, <a href="https://publications.waset.org/abstracts/search?q=Prosopis" title=" Prosopis"> Prosopis</a>, <a href="https://publications.waset.org/abstracts/search?q=viscosity" title=" viscosity"> viscosity</a>, <a href="https://publications.waset.org/abstracts/search?q=endosperm" title=" endosperm"> endosperm</a> </p> <a href="https://publications.waset.org/abstracts/20735/development-of-adhesive-from-prosopis-african-seed-endosperm-okpeyi" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/20735.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">309</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">24</span> Production of Biodiesel from Melon Seed Oil Using Sodium Hydroxide as a Catalyst</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ene%20Rosemary%20Ndidiamaka">Ene Rosemary Ndidiamaka</a>, <a href="https://publications.waset.org/abstracts/search?q=Nwangwu%20Florence%20Chinyere"> Nwangwu Florence Chinyere</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The physiochemical properties of the melon seed oil was studied to determine its potentials as viable feed stock for biodisel production. The melon seed was extracted by solvent extraction using n-hexane as the extracting solvent. In this research, methanol was the alcohol used in the production of biodiesel, although alcohols like ethanol, propanol may also be used. Sodium hydroxide was employed for the catalysis. The melon seed oil was characterized for specific gravity, pH, ash content, iodine value, acid value, saponification value, peroxide value, free fatty acid value, flash point, viscosity, and refractive index using standard methods. The melon seed oil had very high oil content. Specific gravity and flash point of the oil is satisfactory. However, moisture content of the oil exceeded the stipulated ASRTM standard for biodiesel production. The overall results indicates that the melon seed oil is suitable for single-stage transesterification process to biodiesel production. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=biodiesel" title="biodiesel">biodiesel</a>, <a href="https://publications.waset.org/abstracts/search?q=catalyst" title=" catalyst"> catalyst</a>, <a href="https://publications.waset.org/abstracts/search?q=melon%20seed" title=" melon seed"> melon seed</a>, <a href="https://publications.waset.org/abstracts/search?q=transesterification" title=" transesterification"> transesterification</a> </p> <a href="https://publications.waset.org/abstracts/31589/production-of-biodiesel-from-melon-seed-oil-using-sodium-hydroxide-as-a-catalyst" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/31589.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">367</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">23</span> Insecticidal and Antifeedant Activity of Rosemary´s (Rosmarinus Officinalis L.) Different Extracts on Cotton Bollworm Helicoverpa Armigera Hubner</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Monireh%20Movahedi">Monireh Movahedi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Considering undesirable effects of chemical insecticides on environment and human health, most studies focused on insecticidal effects of plant materials. Here, the insecticidal effects of methanol, ethylacetat and n-Hexan extracts of Rosmarinus officinalis L. on larval stage of the cotton bollworm were studied. From each extract, six concentrations, including 5, 10, 20, 40 and 60 mg/ml were prepared and added on larval artificial diet. Moreover, solution of distilled water and tween 2% considered as check treatment. All experiments were done in laboratory temperature of 25±3 ºC, RH =50±10% and natural photoperiod during growing season. Each treatment had four replications and each replication carried out on 10 first instar larva with <24h age. Larval mortality was recorded 3 and 7 days after treat. Based on results, LC50 of methanol, ethylacetat and n-Hexan extracts of R. officinalis were 2.78, 15.87 and 15.70 ml/mg, respectively. On the other hand, antifeedant effect of methanol, ethylacetat and n-Hexan for R. officinalis estimated as 43.13%, 55.11% and 9.19%, respectively. All the obtained results revealed that methanol and ethylacetat extracts of R. officinalis are effective extracts for controlling the cotton bollworm population. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Helocoverpa%20armigera" title="Helocoverpa armigera">Helocoverpa armigera</a>, <a href="https://publications.waset.org/abstracts/search?q=Rosemarinus%20officinalis" title=" Rosemarinus officinalis"> Rosemarinus officinalis</a>, <a href="https://publications.waset.org/abstracts/search?q=extract" title=" extract"> extract</a>, <a href="https://publications.waset.org/abstracts/search?q=methanol" title=" methanol"> methanol</a>, <a href="https://publications.waset.org/abstracts/search?q=ethylacetat" title=" ethylacetat"> ethylacetat</a>, <a href="https://publications.waset.org/abstracts/search?q=n-Hexan" title=" n-Hexan"> n-Hexan</a> </p> <a href="https://publications.waset.org/abstracts/122787/insecticidal-and-antifeedant-activity-of-rosemarys-rosmarinus-officinalis-l-different-extracts-on-cotton-bollworm-helicoverpa-armigera-hubner" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/122787.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">171</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">22</span> Neuroprotective Effects of Rosmarinic Acid in the MPTP Mouse Model of Parkinson's Disease</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Huamin%20Xu">Huamin Xu</a>, <a href="https://publications.waset.org/abstracts/search?q=Wenting%20Jia"> Wenting Jia</a>, <a href="https://publications.waset.org/abstracts/search?q=Hong%20Jiang"> Hong Jiang</a>, <a href="https://publications.waset.org/abstracts/search?q=Junxia%20Xie"> Junxia Xie</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Rosmarinic acid (RA) is a natural acid that is found in a variety of herbs, such as rosemary and has multiple biological activities such as antioxidative, anti-inflammatory and antiviral activities. In this study, we investigated the neuroprotective effects of RA on dopaminergic system in 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) induced mouse model of Parkinson’s disease (PD). The mice received oral administration of RA before MPTP injection. Results showed that the tyrosine hydroxylase expression in SN reduced and the levels of dopamine and its metabolites in the striatum decreased in MPTP intoxicated PD mice. Pretreatment with RA significantly inhibited these changes. Further studies demonstrated that MPTP treatment increased the iron content, which was counteracted by pre-treatment with RA. In addition, RA could restore the decrease of superoxide dismutase (SOD) induced by MPTP. This study provides evidence that RA could suppress MPTP-induced degeneration of the nigrostriatal dopaminergic system by regulating iron content and the expression of SOD. Thus, RA might be clinically evaluated for the prevention of neurodegenerative diseases. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=rosmarinic%20acid" title="rosmarinic acid">rosmarinic acid</a>, <a href="https://publications.waset.org/abstracts/search?q=Parkinson%27s%20disease" title=" Parkinson's disease"> Parkinson's disease</a>, <a href="https://publications.waset.org/abstracts/search?q=MPTP" title=" MPTP"> MPTP</a>, <a href="https://publications.waset.org/abstracts/search?q=dopaminergic%20system" title=" dopaminergic system"> dopaminergic system</a> </p> <a href="https://publications.waset.org/abstracts/74088/neuroprotective-effects-of-rosmarinic-acid-in-the-mptp-mouse-model-of-parkinsons-disease" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/74088.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">205</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">21</span> Teaching Environment and Instructional Materials on Students’ Performance in English Language: Implications for Counselling</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Rosemary%20Saidu">Rosemary Saidu</a>, <a href="https://publications.waset.org/abstracts/search?q=Taiyelolu%20Martins%20Ogunjirin"> Taiyelolu Martins Ogunjirin</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The study examines the teaching environment and instructional materials on the performance of students in the English Language in selected secondary schools in Ogun State and its implication for counselling. Two research questions guided the study were developed. The study adopted a descriptive survey design. A multi-stage sampling technique was employed for the study. Samples of 100 students of Senior Secondary School Two (SSS11) were drawn. Purposive sampling technique was to select the five schools. Additionally, the instruments known as Teaching Environment and Instructional Materials on Students Performance in English Inventory (TEIMEI) and Student Achievement Scores (SAS) were used to elicit information. Thereafter, inferential statistics and the non-parametric chi-square statistics at 0.05 alpha levels and 3 degree of freedom were adopted as analytical tools. From the study, it was discovered among others that teaching environment and instructional materials significantly contributed to the performance of students in the English language. From the findings, it was recommended that among others functional language laboratory in the schools, counselors to regularly give guidance talk on the importance of the subject. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=performance" title="performance">performance</a>, <a href="https://publications.waset.org/abstracts/search?q=English%20language" title=" English language"> English language</a>, <a href="https://publications.waset.org/abstracts/search?q=teaching%20environment" title=" teaching environment"> teaching environment</a>, <a href="https://publications.waset.org/abstracts/search?q=instructional%20materials" title=" instructional materials"> instructional materials</a> </p> <a href="https://publications.waset.org/abstracts/108410/teaching-environment-and-instructional-materials-on-students-performance-in-english-language-implications-for-counselling" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/108410.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">158</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">20</span> Diabetes Diagnosis Model Using Rough Set and K- Nearest Neighbor Classifier</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Usiobaifo%20Agharese%20Rosemary">Usiobaifo Agharese Rosemary</a>, <a href="https://publications.waset.org/abstracts/search?q=Osaseri%20Roseline%20Oghogho"> Osaseri Roseline Oghogho</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Diabetes is a complex group of disease with a variety of causes; it is a disorder of the body metabolism in the digestion of carbohydrates food. The application of machine learning in the field of medical diagnosis has been the focus of many researchers and the use of recognition and classification model as a decision support tools has help the medical expert in diagnosis of diseases. Considering the large volume of medical data which require special techniques, experience, and high diagnostic skill in the diagnosis of diseases, the application of an artificial intelligent system to assist medical personnel in order to enhance their efficiency and accuracy in diagnosis will be an invaluable tool. In this study will propose a diabetes diagnosis model using rough set and K-nearest Neighbor classifier algorithm. The system consists of two modules: the feature extraction module and predictor module, rough data set is used to preprocess the attributes while K-nearest neighbor classifier is used to classify the given data. The dataset used for this model was taken for University of Benin Teaching Hospital (UBTH) database. Half of the data was used in the training while the other half was used in testing the system. The proposed model was able to achieve over 80% accuracy. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=classifier%20algorithm" title="classifier algorithm">classifier algorithm</a>, <a href="https://publications.waset.org/abstracts/search?q=diabetes" title=" diabetes"> diabetes</a>, <a href="https://publications.waset.org/abstracts/search?q=diagnostic%20model" title=" diagnostic model"> diagnostic model</a>, <a href="https://publications.waset.org/abstracts/search?q=machine%20learning" title=" machine learning"> machine learning</a> </p> <a href="https://publications.waset.org/abstracts/43090/diabetes-diagnosis-model-using-rough-set-and-k-nearest-neighbor-classifier" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/43090.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">336</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">19</span> Quantification of Extent of Pollution from Total Lead in the Shooting Ranges Found in Southern and Central Botswana: A Pioneering Study</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nicholas%20Sehube">Nicholas Sehube</a>, <a href="https://publications.waset.org/abstracts/search?q=Rosemary%20Kelebemang"> Rosemary Kelebemang</a>, <a href="https://publications.waset.org/abstracts/search?q=Pogisego%20Dinake"> Pogisego Dinake</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The extent of Pb contamination of shooting range soils has never been ascertained in Botswana, this was the first attempt in evaluating the deposition of Pb into the soils emanating from munitions. A total of 8 military shooting ranges were used for this study. Soil samples were collected at each of the 8 shooting ranges at the berm (stop butt), target line, 50 and 100 m from the berm. In all of the shooting ranges investigated the highest concentrations were found in the berm soils. The highest Pb concentrations of 38 406.87 mg/Kg were found in the berm soils of Thebephatshwa shooting range which is enclosed within a military camp with staff residential dwelling only a kilometre away. Most of the shooting ranges soils contained elevated levels of Pb in the ranges above 2000 mg/kg far exceeding the United States Environmental Protection Agency (USEPA) critical value of 400 mg/Kg. Mobilization of lead at high pH is attributed to low organic matter and such was the case with Thebephatshwa shooting range with a percept organic matter of 0.35±0.08. The predominant weathering products in these shooting ranges were cerussite (PbCO3), hydrocerussite (Pb(CO3)2(OH)2 and massicot (PbO). The detailed examination and characterization of the extent of pollution will help in the development and implementation of scientifically sound remediation and restoration of shooting ranges soils. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ammunition" title="ammunition">ammunition</a>, <a href="https://publications.waset.org/abstracts/search?q=Botswana" title=" Botswana"> Botswana</a>, <a href="https://publications.waset.org/abstracts/search?q=Pb" title=" Pb"> Pb</a>, <a href="https://publications.waset.org/abstracts/search?q=pollution" title=" pollution"> pollution</a>, <a href="https://publications.waset.org/abstracts/search?q=soil" title=" soil"> soil</a> </p> <a href="https://publications.waset.org/abstracts/36674/quantification-of-extent-of-pollution-from-total-lead-in-the-shooting-ranges-found-in-southern-and-central-botswana-a-pioneering-study" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/36674.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">236</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">18</span> Essential Oil Composition and Antimicrobial Activity of Rosmarinus officinalis L. Grown in Algeria (Djelfa)</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Samah%20Lakehal">Samah Lakehal</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Meliani"> A. Meliani</a>, <a href="https://publications.waset.org/abstracts/search?q=F.%20Z.%20Benrebiha"> F. Z. Benrebiha</a>, <a href="https://publications.waset.org/abstracts/search?q=C.%20Chaouia"> C. Chaouia</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In the last few years, due to the misuse of antibiotics and an increasing incidence of immunodeficiency-related diseases, the development of microbial drug resistance has become more and more of a pressing problem. Recently, natural products from medicinal plants represent a fertile ground for the development of novel antibacterial agents. Plants essential oils have come more into the focus of phytomedicine. The present study describes antimicrobial activity of Rosmarinus officinalis L. essential oil known medicinally for its powerful antibacterial properties. The essential oil of rosemary obtained by hydrodistillation (using Clevenger type apparatus) growing in Algeria (Djelfa city of south Algeria) was investigated by GC-MS. The essential oil yield of the study was 1.4 %. The major components were found to be camphor, camphene, 1,8-cineole. The essential oil has been tested for antimicrobial activity against eight bacteria (Gram-negative and Gram-positive), and three fungi including Candida albicans. Inhibition of growth was tested by the agar diffusion method based on the determination of the diameter of inhibition. The oil was found to have significant antibacterial activity and therefore can be used as a natural antimicrobial agent for the treatment of several infectious diseases caused by those germs, which have developed resistance to antibiotics. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=antimicrobial%20activity" title="antimicrobial activity">antimicrobial activity</a>, <a href="https://publications.waset.org/abstracts/search?q=Rosmarinus%20officinalis%20L." title=" Rosmarinus officinalis L."> Rosmarinus officinalis L.</a>, <a href="https://publications.waset.org/abstracts/search?q=essential%20oils" title=" essential oils"> essential oils</a>, <a href="https://publications.waset.org/abstracts/search?q=GC%2FMS" title=" GC/MS"> GC/MS</a>, <a href="https://publications.waset.org/abstracts/search?q=camphor" title=" camphor"> camphor</a> </p> <a href="https://publications.waset.org/abstracts/11783/essential-oil-composition-and-antimicrobial-activity-of-rosmarinus-officinalis-l-grown-in-algeria-djelfa" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/11783.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">391</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">17</span> Accessibility of Youth-Friendly Sexual and Reproductive Health Services to Secondary School Adolescents in Southern Cross River, Nigeria</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Rosemary%20I.%20Eneji">Rosemary I. Eneji</a>, <a href="https://publications.waset.org/abstracts/search?q=Stephen%20Adi%20Odey"> Stephen Adi Odey</a>, <a href="https://publications.waset.org/abstracts/search?q=Edem%20Carole"> Edem Carole</a>, <a href="https://publications.waset.org/abstracts/search?q=Eucharia%20Nwagbara"> Eucharia Nwagbara</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Sexual and reproductive health behaviors are the main causes of death, disability, and disease among adolescents in Nigeria. In this study, we determined the accessibility of youth-friendly sexual and reproductive health services to secondary school adolescents in southern Cross River state, Nigeria. Nineteen randomly selected public secondary schools across the seven local government areas in the zone were used. The respondents were four hundred senior secondary (classes SSI - SS3) students aged 15-19 years, comprising 63.7% females and 36.3% males. A 50-item structured questionnaire was used for the study. There was a strong influence of age and sex of adolescents, income and occupation of parents, knowledge and awareness of adolescents, and tradition on the accessibility and use of youth-friendly sexual and reproductive health services (YFSRHS) to the adolescents. The attitude of health workers towards accessibility was of little effect. Overall, youth-friendly sexual and reproductive health services were not easily accessible to adolescents in the study area. Thus, there is need to enforce adolescent reproductive health policies in the area. Training and use of trained caregivers and peer educators to attend to adolescents and the inclusion of adolescent reproductive health as a subject in the curriculum are strongly recommended. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=youth" title="youth">youth</a>, <a href="https://publications.waset.org/abstracts/search?q=reproductive%20health" title=" reproductive health"> reproductive health</a>, <a href="https://publications.waset.org/abstracts/search?q=cross%20river%20state" title=" cross river state"> cross river state</a>, <a href="https://publications.waset.org/abstracts/search?q=secondary%20schools" title=" secondary schools"> secondary schools</a>, <a href="https://publications.waset.org/abstracts/search?q=Nigeria" title=" Nigeria"> Nigeria</a> </p> <a href="https://publications.waset.org/abstracts/179649/accessibility-of-youth-friendly-sexual-and-reproductive-health-services-to-secondary-school-adolescents-in-southern-cross-river-nigeria" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/179649.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">72</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">16</span> Female’s Involvement in Real Estate Business in Nigeria: A Case Study of Lagos State</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Osaretin%20Rosemary%20Uyi">Osaretin Rosemary Uyi</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20O.%20Ogungbemi"> A. O. Ogungbemi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Female involvement in policy making and partnership in a man-driven-world is fast gaining international recognition. The Nigeria commercial real estate is one of the sectors of the economy that has a significant number of the male in the business. This study was conducted to assess the participation of females in estate management in Lagos state, Nigeria. Lagos is the commercial nerve center of Nigeria having the highest number of real estate practitioners and investors. The population due to the daily influx of people has made real estate business to continue to grow in this part of Nigeria. A structured questionnaire duly pre-tested and validated was used to elicit information from the respondents. The data collected were presented using tables and charts and were analyzed using descriptive statistical tools such as frequency counts, percentages, were used to test the hypothesis. The results also indicated that most females that participated in commercial real estate business are educated (80%), fell within 31-40 years of age (75%) and of high income status (88%) earn above ₦800,000 per year, while 10% are real estate investors and 82% of the female in the sector are employee. The study concluded that the number of female participating in various aspect of commercial real estate business in the study area was moderate while the numbers of female investors are low when compared to male. This might be due to the problems associated with rent collection, land disputes and other issues that are associated with property management in Nigeria. It is therefore recommended that females in real estate should be empowered and encouraged to match with their male counterpart. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=commercial%20real%20estate" title="commercial real estate">commercial real estate</a>, <a href="https://publications.waset.org/abstracts/search?q=empowerment" title=" empowerment"> empowerment</a>, <a href="https://publications.waset.org/abstracts/search?q=female" title=" female"> female</a>, <a href="https://publications.waset.org/abstracts/search?q=participation" title=" participation"> participation</a>, <a href="https://publications.waset.org/abstracts/search?q=property%20management" title=" property management"> property management</a> </p> <a href="https://publications.waset.org/abstracts/34399/females-involvement-in-real-estate-business-in-nigeria-a-case-study-of-lagos-state" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/34399.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">332</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">15</span> The Effect of Malaria Parasitaemia on Serum Reproductive Hormonal Levels of Asymptomatic HIV Subjects in Nauth Nnewi, South Eastern Nigeria</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ezeugwunne%20Ifeoma%20Priscilla">Ezeugwunne Ifeoma Priscilla</a>, <a href="https://publications.waset.org/abstracts/search?q=Charles%20Chinedum%20Onyenekwe"> Charles Chinedum Onyenekwe</a>, <a href="https://publications.waset.org/abstracts/search?q=Joseph%20Eberendu%20Ahaneku"> Joseph Eberendu Ahaneku</a>, <a href="https://publications.waset.org/abstracts/search?q=Rosemary%20Adanma%20Analike"> Rosemary Adanma Analike</a>, <a href="https://publications.waset.org/abstracts/search?q=Adesuwa%20Peace%20Eidangbe"> Adesuwa Peace Eidangbe</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study was designed to assess the effect of malaria parasitaemia on serum reproductive hormone levels of asymptomatic HIV adult subjects. A total of 271 participants aged between 17 and 58 ears were conveniently recruited. 135 asymptomatic HIV-infected subjects participated in the study; 67 of them had malaria parasitaemia. 136 HIV seropositive control subjects, 68 of them had malaria parasitaemia. Blood samples were collected from the participants for the determination of HIV status by immunoassay and immunochromatography. Enzyme-linked immunosorbent assay (ELISA) was used to assay for serum LH, FSH, Estrogen, testosterone, progesterone, prolactin, and PSA levels, CD4+T cell counts by Cyflow method, thick and thin films determination of malaria parasitaemia count and density by WHO. Student's t-tests and ANOVA were used to compare means. P<0.05 was considered statistically significant. The results showed significant differences in serum levels of LH, FSH, PSA, estrogen, progesterone, and testosterone amongst the groups at P<0.05, respectively. The serum levels of LH, FSH, and PSA were significantly higher in malaria-infected asymptomatic HIV subjects than in asymptomatic HIV subjects with malaria parasitaemia (P<0.05 in each case). Also, the serum levels of LH, FSH, PSA, estrogen, and progesterone were significantly higher in malaria-infected asymptomatic HIV subjects compared with malaria-infected HIV seronegative subjects (P<0.05, respectively). The mean MP counts and MP density were significantly higher in asymptomatic HIV subjects compared to HIV seronegative subjects (P<0.05, in each case). The mean serum levels of testosterone were significantly lower in both malaria-infected and malaria uninfected HIV seronegative subjects (P<0.05, in each case). In conclusion, Malaria and HIV co-infection might increase the burden of hypogonadism as well as primary testicular failure, hyperprogesteronaemia, elevated levels of estrogen, and PSA in adult males asymptomatic HIV subjects. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=malaria%20parasitaemia" title="malaria parasitaemia">malaria parasitaemia</a>, <a href="https://publications.waset.org/abstracts/search?q=HIV" title=" HIV"> HIV</a>, <a href="https://publications.waset.org/abstracts/search?q=CD4" title=" CD4"> CD4</a>, <a href="https://publications.waset.org/abstracts/search?q=reproductive%20hormones" title=" reproductive hormones"> reproductive hormones</a> </p> <a href="https://publications.waset.org/abstracts/148824/the-effect-of-malaria-parasitaemia-on-serum-reproductive-hormonal-levels-of-asymptomatic-hiv-subjects-in-nauth-nnewi-south-eastern-nigeria" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/148824.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">142</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">14</span> The Happiness Pulse: A Measure of Individual Wellbeing at a City Scale, Development and Validation</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Rosemary%20Hiscock">Rosemary Hiscock</a>, <a href="https://publications.waset.org/abstracts/search?q=Clive%20Sabel"> Clive Sabel</a>, <a href="https://publications.waset.org/abstracts/search?q=David%20Manley"> David Manley</a>, <a href="https://publications.waset.org/abstracts/search?q=Sam%20Wren-Lewis"> Sam Wren-Lewis</a> </p> <p class="card-text"><strong>Abstract:</strong></p> As part of the Happy City Index Project, Happy City have developed a survey instrument to measure experienced wellbeing: how people are feeling and functioning in their everyday lives. The survey instrument, called the Happiness Pulse, was developed in partnership with the New Economics Foundation (NEF) with the dual aim of collecting citywide wellbeing data and engaging individuals and communities in the measurement and promotion of their own wellbeing. The survey domains and items were selected through a review of the academic literature and a stakeholder engagement process, including local policymakers, community organisations and individuals. The Happiness Pulse was included in the Bristol pilot of the Happy City Index (n=722). The experienced wellbeing items were subjected to factor analysis. A reduced number of items to be included in a revised scale for future data collection were again entered into a factor analysis. These revised factors were tested for reliability and validity. Among items to be included in a revised scale for future data collection three factors emerged: Be, Do and Connect. The Be factor had good reliability, convergent and criterion validity. The Do factor had good discriminant validity. The Connect factor had adequate reliability and good discriminant and criterion validity. Some age, gender and socioeconomic differentiation was found. The properties of a new scale to measure experienced wellbeing, intended for use by municipal authorities, are described. Happiness Pulse data can be combined with local data on wellbeing conditions to determine what matters for peoples wellbeing across a city and why. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=city%20wellbeing" title="city wellbeing ">city wellbeing </a>, <a href="https://publications.waset.org/abstracts/search?q=community%20wellbeing" title=" community wellbeing"> community wellbeing</a>, <a href="https://publications.waset.org/abstracts/search?q=engaging%20individuals%20and%20communities" title=" engaging individuals and communities"> engaging individuals and communities</a>, <a href="https://publications.waset.org/abstracts/search?q=measuring%20wellbeing%20and%20happiness" title=" measuring wellbeing and happiness"> measuring wellbeing and happiness</a> </p> <a href="https://publications.waset.org/abstracts/50890/the-happiness-pulse-a-measure-of-individual-wellbeing-at-a-city-scale-development-and-validation" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/50890.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">261</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">13</span> Distribution and Risk Assessment of Phthalates in Water and Sediment of Omambala River, Anambra State, Nigeria, in Wet Season</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ogbuagu%20Josephat%20Okechukwu">Ogbuagu Josephat Okechukwu</a>, <a href="https://publications.waset.org/abstracts/search?q=Okeke%20Abuchi%20Princewill"> Okeke Abuchi Princewill</a>, <a href="https://publications.waset.org/abstracts/search?q=Arinze%20Rosemary%20Uche"> Arinze Rosemary Uche</a>, <a href="https://publications.waset.org/abstracts/search?q=Tabugbo%20Ifeyinwa%20Blessing"> Tabugbo Ifeyinwa Blessing</a>, <a href="https://publications.waset.org/abstracts/search?q=Ogbuagu%20Adaora%20Stellamaris"> Ogbuagu Adaora Stellamaris</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Phthalates or Phthalate esters (PAEs), categorized as an endocrine disruptor and persistent organic pollutants, are known for their environmental contamination and toxicological effects. In this study, the concentration of selected phthalates was determined across the sampling site to investigate their occurrence and the ecological and health risk assessment they pose to the environment. Water and sediment samples were collected following standard procedures. Solid phase and ultrasonic methods were used to extract seven different PAEs, which were analyzed by Gas Chromatography with Mass Detector (GCMS). The analytical average recovery was found to be within the range of 83.4% ± 2.3%. The results showed that PAEs were detected in six out of seven samples with a high percentage of detection rate in water. Di-n-butyl phthalate (DPB) and disobutyl phthalates (DiBP) showed a greater detection rate compared to other PAE monomers. The concentration of PEs was found to be higher in sediment samples compared to water samples due to the fact that sediments serve as a sink for most persistent organic pollutants. The concentrations of PAEs in water samples and sediments ranged from 0.00 to 0.23 mg/kg and 0.00 to 0.028 mg/l, respectively. Ecological risk assessment using the risk quotient method (RQ) reveals that the estimated environmental risk caused by phthalates lies within the moderate level as RQ ranges from 0.1 to 1.0, whereas the health risk assessment caused by phthalates on estimating the average daily dose reveals that the ingestion of phthalates was found to be approaching permissible limit which can cause serious carcinogenic occurrence in the human system with time due to excess accumulation. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=phthalates" title="phthalates">phthalates</a>, <a href="https://publications.waset.org/abstracts/search?q=endocrine%20disruptor" title=" endocrine disruptor"> endocrine disruptor</a>, <a href="https://publications.waset.org/abstracts/search?q=risk%20assessment" title=" risk assessment"> risk assessment</a>, <a href="https://publications.waset.org/abstracts/search?q=ecological%20risk" title=" ecological risk"> ecological risk</a>, <a href="https://publications.waset.org/abstracts/search?q=health%20risk" title=" health risk"> health risk</a> </p> <a href="https://publications.waset.org/abstracts/182898/distribution-and-risk-assessment-of-phthalates-in-water-and-sediment-of-omambala-river-anambra-state-nigeria-in-wet-season" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/182898.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">74</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">12</span> The Chemical Composition and Larvicidal Activity of Essential Oils Derived from Piper Longepetiolatum and Piper Brachypetiolatum (Piperaceae) Against Aedes Aegypti Larvae (Culicidae) Were Investigated</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Suelen%20C.%20Lima">Suelen C. Lima</a>, <a href="https://publications.waset.org/abstracts/search?q=Andr%C3%A9%20C.%20de%20Oliveira"> André C. de Oliveira</a>, <a href="https://publications.waset.org/abstracts/search?q=Rosemary%20A.%20Roque"> Rosemary A. Roque</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Dengue is fatal arboviruses transmitted by the A. aegypti mosquito to more than 100 countries, for which the WHO estimates that 2.5 million people will be infected by these disease. The widespread of these diseases is due, among other factors, to the resistance that A. aegypti has to several commercial insecticides. On the other hand, natural products based on plants of the genus Piper (Piperaceae) are characterized by their insecticidal activities against mosquitoes. Piper longepetiolatum and Piper brachypetiolatum are species with wide distribution in the State of Amazonas. However, there is no investigation of phytochemical or biological of these plants against mosquitoes such as A. aegypti. The main of this study was to identify the chemical composition of the essential oil (EOs) from P. longepetiolatum and P. brachypetiolatum and to evaluate the biological activity against A. aegypti. The EOs were extracted by hydrodistillation from leaves (200 g) of P. longepetiolatum and P. brachypetiolatum and analyzed by GC-MS and GC-FID. The main compounds β-caryophyllene (99.9% of purity) and E-nerolidol (99.4% of purity) were purchased from Sigma-Aldrich® Brazil. The larvicidal activity of EOs (20 to 100 ppm), β-caryophyllene and E-nerolidol (10 to 50 ppm) was performed according to WHO protocol against A. aegypti larvae. The GC-MS and GC-FID analysis of EOs from P. longepetiolatum and P. brachypetiolatum indicated the majority presence of β-caryophyllene (35.42%) and E-nerolidol (49.79%), respectively. The results showed that all natural products presented larvicidal activity against A. aegypti. In this aspect, the OE from P. brachypetiolatum (LC50 of 15.51 ppm and LC90 of 22.79 ppm) was more active than the OE from P. longepetiolatum (LC50 of 47.17 ppm and LC90 of 69.60 ppm) (p < 0.05). Regarding of main compounds, E-nerolidol (LC50 of 9.50 ppm and LC90 of 23.89 ppm) showed higher larvicidal activity than the β-caryophyllene compound (LC50 of 79.00 ppm and LC90 of 230.91 ppm) (p < 0.05). The larvae treated with these natural products showed tremors and lethargic movements, suggesting that these natural products have neurotoxic action. These observations support studies to investigate the mechanism of action. This is the first record of the chemical composition and larvicidal activity of the EO from P. longepetiolatum and P. brachypetiolatum rich in β-caryophyllene and E-nerolidol against A. aegypti larvae. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=piperaceae" title="piperaceae">piperaceae</a>, <a href="https://publications.waset.org/abstracts/search?q=aedes" title=" aedes"> aedes</a>, <a href="https://publications.waset.org/abstracts/search?q=sesquiterpenes" title=" sesquiterpenes"> sesquiterpenes</a>, <a href="https://publications.waset.org/abstracts/search?q=biological%20control" title=" biological control"> biological control</a> </p> <a href="https://publications.waset.org/abstracts/175157/the-chemical-composition-and-larvicidal-activity-of-essential-oils-derived-from-piper-longepetiolatum-and-piper-brachypetiolatum-piperaceae-against-aedes-aegypti-larvae-culicidae-were-investigated" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/175157.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">76</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">11</span> Inhibition Effect of Natural Junipers Extract towards Steel Corrosion in HCl Solution</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=L.%20Bammou">L. Bammou</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Belkhaouda%20R.%20Salghi"> M. Belkhaouda R. Salghi</a>, <a href="https://publications.waset.org/abstracts/search?q=L.%20Bazzi"> L. Bazzi</a>, <a href="https://publications.waset.org/abstracts/search?q=B.%20Hammouti"> B. Hammouti </a> </p> <p class="card-text"><strong>Abstract:</strong></p> Steel and steel-based alloys of different grades steel are extensively used in numerous applications where acid solutions are widely applied such as industrial acid pickling, industrial acid cleaning and oil-well acidizing. The use of chemical inhibitors is one of the most practical methods for the protection against corrosion in acidic media. Most of the excellent acid inhibitors are organic compounds containing nitrogen, oxygen, phosphorus and sulphur. The use of non-toxic inhibitors called green or eco-friendly environmental inhibitors is one of the solutions possible to prevent the corrosion of the material. These advantages have incited us to draw a large part of program of our laboratory to examine natural substances as corrosion inhibitors such as: prickly pear seed oil, Argan oil, Argan extract, Fennel oil, Rosemary oil, Thymus oil, Lavender oil, Jojoba oil, Pennyroyal Mint oil, and Artemisia. In the present work, we investigate the corrosion inhibition of steel in 1 M HCl by junipers extract using weight loss, potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) methods. The result obtained of junipers extract (JE) shows excellent inhibition properties for the corrosion of C38 steel in 1M HCl at 298K, and the inhibition efficiency increases with increasing of the JE concentration. The inhibitor efficiencies determined by weight loss, Tafel polarisation and EIS methods are in reasonable agreement. Based on the polarisation results, the investigated junipers extract can be classified as mixed inhibitor. The calculated structural parameters show increase of the obtained Rct values and decrease of the capacitance, Cdl, with JE concentration increase. It is suggested to attribute this to the increase of the thickness of the adsorption layer at steel surface. The adsorption model obeys to the Langmuir adsorption isotherm. The adsorption process is a spontaneous and exothermic process. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=corrosion%20inhibition" title="corrosion inhibition">corrosion inhibition</a>, <a href="https://publications.waset.org/abstracts/search?q=steel" title=" steel"> steel</a>, <a href="https://publications.waset.org/abstracts/search?q=friendly%20inhibitors" title=" friendly inhibitors"> friendly inhibitors</a>, <a href="https://publications.waset.org/abstracts/search?q=Tafel%20polarisation" title=" Tafel polarisation "> Tafel polarisation </a> </p> <a href="https://publications.waset.org/abstracts/17504/inhibition-effect-of-natural-junipers-extract-towards-steel-corrosion-in-hcl-solution" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/17504.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">522</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">10</span> Effectiveness of a Sports Nutrition Intervention for High-School Athletes: A Feasibility Study</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Michael%20Ryan">Michael Ryan</a>, <a href="https://publications.waset.org/abstracts/search?q=Rosemary%20E.%20Borgerding"> Rosemary E. Borgerding</a>, <a href="https://publications.waset.org/abstracts/search?q=Kimberly%20L.%20Oliver"> Kimberly L. Oliver</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The objective of this study was to assess the effectiveness of a sports nutrition intervention on body composition in high-school athletes. The study aimed to improve the food and water intake of high-school athletes, evaluate the cost-effectiveness of the intervention, and assess changes in body fat. Data were collected through observations, questionnaires, and interviews. Additionally, bioelectrical impedance analysis was performed to assess the body composition of athletes both before and after the intervention. Athletes (n=25) participated in researcher-monitored training sessions three times a week over the course of 12 weeks. During these sessions, in addition to completing their auxiliary sports training, participants were exposed to educational interventions aimed at improving their nutrition. These included discussions regarding current eating habits, nutritional guidelines for athletes, and individualized recommendations. Food was also made available to athletes for consumption before and after practice. Meals of balanced macronutrient composition were prepared and provided to athletes on four separate occasions throughout the intervention, either prior to or following a competitive event such as a tournament or game. A paired t-test was used to determine the statistical significance of the changes in body fat percentage. The results showed that there was a statistically significant difference between pre and post-intervention body fat percentage (p= .006). Cohen's d of 0.603 was calculated, indicating a moderate effect size. In conclusion, this study provides evidence that a sports nutrition intervention that combines food availability, explicit prescription, and education can be effective in improving the body composition of high-school athletes. However, it's worth noting that this study had a small sample size, and the conclusions cannot be generalized to a larger population. Further research is needed to assess the scalability of this study. This preliminary study demonstrated the feasibility of this type of nutritional intervention and laid the groundwork for a larger, more extensive study to be conducted in the future. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=bioelectrical%20impedance" title="bioelectrical impedance">bioelectrical impedance</a>, <a href="https://publications.waset.org/abstracts/search?q=body%20composition" title=" body composition"> body composition</a>, <a href="https://publications.waset.org/abstracts/search?q=high-school%20athletes" title=" high-school athletes"> high-school athletes</a>, <a href="https://publications.waset.org/abstracts/search?q=sports%20nutrition" title=" sports nutrition"> sports nutrition</a>, <a href="https://publications.waset.org/abstracts/search?q=sports%20pedagogy" title=" sports pedagogy"> sports pedagogy</a> </p> <a href="https://publications.waset.org/abstracts/161868/effectiveness-of-a-sports-nutrition-intervention-for-high-school-athletes-a-feasibility-study" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/161868.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">94</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">9</span> Identification and Quantification of Sesquiterpene Lactones of Sagebrush (Artemisia tridentate) and Its Chemical Modification</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Rosemary%20Anibogwu">Rosemary Anibogwu</a>, <a href="https://publications.waset.org/abstracts/search?q=Kavita%20Sharma"> Kavita Sharma</a>, <a href="https://publications.waset.org/abstracts/search?q=Karl%20De%20Jesus"> Karl De Jesus </a> </p> <p class="card-text"><strong>Abstract:</strong></p> Sagebrush is an abundant and naturally occurring plant in the Intermountain West region of the United States. The plant contains an array of bioactive compounds such as flavonoids, terpenoids, sterols, and phenolic acids. It is important to identify and characterize these compounds because Native Americans use sagebrush as herbal medicine. These compounds are also utilized for preventing infection in wounds, treating headaches and colds, and possess antitumor properties. This research is an exploratory study on the sesquiterpene present in the leaves of sagebrush. The leaf foliage was extracted with 100 % chloroform and 100 % methanol. The percentage yield for the crude was considerably higher in chloroform. The Thin Layer Chromatography (TLC) analysis of the crude extracted unveiled a brown band at Rf = 0.25 and a dark brown band at Rf = 0.74, along with three unknown faint bands the 254 nm UV lamp. Furthermore, the two distinct brown (Achillin) and dark brown band (Hydroxyachillin) in TLC were further utilized in the isolation of pure compounds with column chromatography. The structures of Achillin and Hydroxyachillin were elucidated based on extensive spectroscopic analysis, including TLC, High-Performance Liquid Chromatography (HPLC), 1D- and 2D-Nuclear Magnetic Resonance (NMR), and Mass Spectroscopy (MS). The antioxidant activities of crude extract and three pure compounds were evaluated in terms of their peroxyl radical scavenging by Ferric Reducing Ability of Plasma (FRAP) and 1,1-Diphenyl-2-picryl-hydrazyl (DPPH) methods. The crude extract showed the antioxidant activity of 18.99 ± 0.51 µmol TEg -1 FW for FRAP and 11.59 ± 0.38 µmol TEg -1 FW for DPPH. The activities of Achillin, Hydroxyachillin, and Quercetagetin trimethyl ether were 13.03, 15.90 and 14.02 µmol TEg -1 FW respectively for the FRAP assay. The three purified compounds have been submitted to the National Cancer Institute 60 cancer cell line for further study. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=HPLC" title="HPLC">HPLC</a>, <a href="https://publications.waset.org/abstracts/search?q=nuclear%20magnetic%20resonance%20spectroscopy" title=" nuclear magnetic resonance spectroscopy"> nuclear magnetic resonance spectroscopy</a>, <a href="https://publications.waset.org/abstracts/search?q=sagebrush" title=" sagebrush"> sagebrush</a>, <a href="https://publications.waset.org/abstracts/search?q=sesquiterpene%20lactones" title=" sesquiterpene lactones"> sesquiterpene lactones</a> </p> <a href="https://publications.waset.org/abstracts/115012/identification-and-quantification-of-sesquiterpene-lactones-of-sagebrush-artemisia-tridentate-and-its-chemical-modification" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/115012.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">131</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">8</span> Interrogating Student-Teachers’ Transformative Learning Role, Resources and Journey Considering Pedagogical Reform in Teacher Education Continuums</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nji%20Clement%20Bang">Nji Clement Bang</a>, <a href="https://publications.waset.org/abstracts/search?q=Rosemary%20Shafack%20M."> Rosemary Shafack M.</a>, <a href="https://publications.waset.org/abstracts/search?q=Kum%20Henry%20Asei"> Kum Henry Asei</a>, <a href="https://publications.waset.org/abstracts/search?q=Yaro%20Loveline%20Y"> Yaro Loveline Y</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Scholars perceive learner-centered teaching-learning reform as roles and resources in teacher education (TE) and professional outcome with transformative learning (TL) continuum dimensions. But, teaching-learning reform is fast proliferating amidst debilitating stakeholder systemic dichotomies, resources, commitment, resistance and poor quality outcome that necessitate stronger TE and professional continuums. Scholars keep seeking greater understanding of themes in teaching-learning reform, TE and professional outcome as continuums and how policymakers, student-teachers, teacher trainers and local communities concerned with initial TE can promote continuous holistic quality performance. To sustain the debate continuum and answer the overarching question, we use mixed-methods research-design with diverse literature and 409 sample-data. Onset text, interview and questionnaire analyses reveal debilitating teaching-learning reform in TE continuums that need TL revival. Follow-up focus group discussion and teaching considering TL insights reinforce holistic teaching-learning in TE. Therefore, significant increase in diverse prior-experience articulation1; critical reflection-discourse engagement2; teaching-practice interaction3; complex-activity constrain control4 and formative outcome- reintegration5 reinforce teaching-learning in learning-to-teach role-resource pathways and outcomes. Themes reiterate complex teaching-learning in TE programs that suits TL journeys and student-teachers and students cum teachers, workers/citizens become akin, transformative-learners who evolve personal and collective roles-resources towards holistic-lifelong-learning outcomes. The article could assist debate about quality teaching-learning reform through TL dimensions as TE and professional role-resource continuums. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=transformative%20learning%20perspectives" title="transformative learning perspectives">transformative learning perspectives</a>, <a href="https://publications.waset.org/abstracts/search?q=teacher%20education" title=" teacher education"> teacher education</a>, <a href="https://publications.waset.org/abstracts/search?q=initial%20teacher%20education" title=" initial teacher education"> initial teacher education</a>, <a href="https://publications.waset.org/abstracts/search?q=learner-centered%20pedagogical%20reform" title=" learner-centered pedagogical reform"> learner-centered pedagogical reform</a>, <a href="https://publications.waset.org/abstracts/search?q=life-long%20learning" title=" life-long learning"> life-long learning</a> </p> <a href="https://publications.waset.org/abstracts/166863/interrogating-student-teachers-transformative-learning-role-resources-and-journey-considering-pedagogical-reform-in-teacher-education-continuums" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/166863.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">76</span> </span> </div> </div> <ul class="pagination"> <li class="page-item disabled"><span class="page-link">‹</span></li> <li class="page-item active"><span class="page-link">1</span></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=rosemary&page=2">2</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=rosemary&page=2" rel="next">›</a></li> </ul> </div> </main> <footer> <div id="infolinks" class="pt-3 pb-2"> <div 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